engine coolant MITSUBISHI 3000GT 1994 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - MFI Circuit 107 ~
MFIRELAY
77(F>Rr----<\ 2I
I
II/I/II/I2(2IA FUEL
; .xt
PRESSURE
SOLENOID
EII"1 (A-71)III
;----,,----__-__--_-___
3
(F>L-R(F>LG-B
(c-52)7I------__-_____--_
b+
---------__--_-____
(F>L-R
(F)L-b
@%[ffifvE $ %ENOID i
‘l- (A-20)10
I
i
AIRCONDITIONING
ENGINE COOLANT=
g;#BATU"EPOWER STEER
PRESSURE SW
1
B-c
DATA LINK
CONNECTORIG
/ ENGINE/ g/QgL
I
HR05MOGCB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - MFI Circuit eTlJRBO>
MFI CIRCUIT (1994 MODELS) (CONTINUED)
(B-02)
VOLUME
&6kDW
(B-29)
ENGINE
COOLANT
'XW~~ATUREr.-wp
L‘I w~[ow]INTAKE AIR
;EE;$AT"REi
-
1
B
1
i
(/c-
ii5v
J7
(F)1.25B
51
(F)G-Y(F>O
(F11.258
(F)1.25B(F)R-I(F)G-Y(F>L-Y(F>B-b
t
.9 (c-54)92_-----2-------.
I
11_---15--------------_
I
30-------_--.
(F)l
(F)R-lr
LI
33-.-----------(c-52)
ENGINE
CONTROLMODULE
+(j,
f1Tf3-e5v
HR05M07BA
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - MFI Circuit
MFI CIRCUIT (1995 MODELS) (CONTINUED)I
ENGINE
COOLANT
$;/WE&ATURE VOLUME&k&&""
-JCL,
J
l-INTAKE AIR$~W&&fJATURE
;
(F>G-k:F)C
I
5
(F>G-Y(F)L-Y(F)B-1
'2.----___I
I
8’- --
i5v
1---_!? __--- - ------_IO-----l----
I
3
I(F>B
(F>G-Y
(F)B
7
(F)1.25E
(F>1.25E
(F>1.25@
19 (c-54)3
(F)E
(F>R-L-
32-------
(F)R-\I
,
33--------------c
ENGINE
CONTROL
MODULE
15V
HROBMOBBA
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - MFI Circuit
COMPONENT LOCATIONUp to 1993 models and 1994, 1995 models Non Turbo (Federal)
NameSymbol
Air conditioning relay0
Air conditioning switch
Camshaft position sensor
a
Check engine/malfunction indicator lampP
Crankshaft position sensorD
Data link connectorR
EGR solenoid Z
EGR temperature sensor

Engine control module
Engine coolant temperature sensor
Evaporative emission purge solenoid
Fuel pressure solenoid

Heated oxygen sensorE
idle air control motor (stepper motor)L
Name/ Symbol
Ignition coil (ignition power transistor)
Ignition timing adjusting terminal
Injector
(1
Multrport fuel rnjectron (MFI) relay
ParWNeutral position switch c&T>
Power steering pressure switchH
Resistor W
Throttle position sensor (With built-in closed throttleCposition switch)
Turbocharger waste gate solenoid U
Variable induction control motor (DC motor) (withJbuilt-in induction control valve position sensor)

Vehicle speed sensorFIVolume air flow sensor (with built-in intake air A
temperature sensor and barometric pressure sensor)
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Downloaded from www.Manualslib.com manuals search engine 176CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (UP TO 1993 MODELS)
‘LJ\
IGNITIONIGNITSWITCH(IG2)SWITCINIGl)FUSIBLE LINK@
2R-B
2R-B
28-h2L-B
7
b
“t
'""I, L-RI + 0.85B-W
T
tL-RI
2L-GL-R2L-GL-R0.85B-W
5,l,,511
(A-04X)I\fi RADIATOR A59 (D-04)7T
-------&!EA?oToR-------
;,ON\I (LO) (HI).OFF-:flN\/ _L
43I43
L-Bh28
G-BL-Y
JOFF-
2L-Y
2L-YG-B
01
I
L-B
L-BG-B
,36/ZPI
(D-45)7
L-Y
2
d
ENGINE
1 d
1
?
COOLANT
LEVEL SENSOR
OFF -0; (A-56)
iBRESISTOR
L
RADIATOR FAN ASSEMBLY(A-55)
2E
2E
6
HRO-SMOOAA
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Downloaded from www.Manualslib.com manuals search engine 180CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (1994, 1995 MODELS)

f$+yT” b,C~:Al’;f’ _____ ffJYG’: B-w 1
122R-BI.MANUAL A/CCHARGING""I-,, nm.nnKHJJIHIUKFAN
ASSEMBLY
RADIATOR
FAN MOTOR
)
m2L
!2L-G
METER AND I
(A-04X)
HiW’ AToRASSEMBLY(RESISTOR)
2B
L-
L-E
LIGHT
SAUGES1 5
LIGHTANDRADIATORHAZARD LIGHT
;fi~,~OTOR
(LIO)(HI) OFF-:/ON\/3 4
28
11---------------------------
G-BL-Y fG-B,
VEHICLE
.R $&/ND ;&i$;R
ENGINE
COOLANT
$;lgiEATURE
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Downloaded from www.Manualslib.com manuals search engine 182CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (FROM 1996 MODELS)
2L-B
(C-82)J/B
@
i10A(c-69)
IGNITIONIGNITIONSWITCH(IG2)SWITCH(IG1)
---pqF-JNG
1
2R-B2R-BI+.MANUAL A/C'FULL-AUTO
AIR CONDITIONING
01METER AND GAUGES
L-l
I
(A-07X)
TURN-SIGNAL
LIGHT AND
HAZARD LIGHT
L-R
2L-GL-fr-b---
5
(A-04X)
I
?
1
1
I k---------
2L-G
L-R
,,51RADIATOR/\
Kk!A!oToR---------_
(LO)(HI) PFF-..b
I4
2BG-B
11G-B__---____----------_------IN
i
1
2E
L-E
Gj~~~~~ G-B
(A-56)
G-BJ
L-EG-E
112L-Y
Bll
ENGINE
COOLANT
~~/;;~A'""" VEHICLEMETER AND @;RGAUGES
Y-W
EL&4A/T 1
201 86---_--------_-1 92-----
2EHROGMOBAA
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Cooling Circuit185

OPERATIONThe engine control module controls the power
transistors (high speed and low speed) in the moduleto provide radiator fan motor and condenser fan
motor rotation controls in accordance with the engine
coolant temperature and vehicle speed.
NOTEIn the event of faulty water temperature sensor,
the engine control module commands the fan motors
(for both radiator and condenser) to rotate at high
speeds.1. Radiator Fan (Low Speed Rotation)
l
When the engine control module turns onthe power transistor (low speed) in the
module, the current flows from the ignition
switch to the engine control module throughthe radiator fan motor relay (LO) coil.
If the current flows to the fan motor relay
coil, the switch of the relay turns on to supplythe motor driving power (for low speed
rotation). This will cause the current to flow
from the battery to the ground through the
radiator fan motor, relay switch and resistor,rotating the radiator fan at low speeds.
2. Condenser Fan (Low Speed Rotation)
l
The power from the NC compressor lock
controller turns on the condenser fan motorrelay (LO) to rotate the condenser fan at
low speeds.3. Radiator Fan, Condenser Fan (High
Speed Rotation)l
When the engine control module turns onthe power transistor (high speed) in the
module. the radiator fan motor relay (HI)
and condenser fan motor relay (HI) will
operate and the motor driving power (for
high speed rotation) is sent to the radiator
fan motor and condenser fan motor to rotate
the radiator fan and condenser fan at high
speeds.
TROUBLESHOOTING HINTS1. Neither the radiator fan nor condenser
fan rotate at all.
l Check fusible link No. 5.
2. Only the condenser fan does not
operate.l Check dedicated fuse No. 8.
3. The condenser fan do not operate in the
low speed mode, but operate otherwise.
(1) The A/C compressor magnet clutch does
not enter the “ON” state.l Check whether the output of the air
conditioning compressor lock controller
unit is available.
(2) The A/C compressor magnet clutch enters
the “ON” state.l
Check the condenser fan motor relay
(LO)-4. The radiator fan and condenser fan do
not operate in the high speed mode, but
operate otherwise.l Check the engine control unit.
Fan Operating Mode
VehicleA/C compressor lockspeedcontroller output
k%
80 or less[50 or less]
LO
(OV)
80 or more[50 or more]HI (12V)
,_ -
Engine coolanttemperature
$1
Approx. 95 [203] or less
Approx. 95
[203] or more
Approx. 105
[221] or more
Approx. 105
[221] or less
Approx. 105
[221] or more
Approx. 105
[221] or less
Approx. 105
12211 or moreTransistor
Transistor
in enginein engineRadiatorCondensercontrol unitcontrol unitfanfan
Low speedHigh speed
OFF
OFFOFFOFF
ONOFFLow speedOFF
ON
ONHigh speedHigh speed
OFF
OFFOFFOFF
ONONHigh speedHigh speed
ON
OFFLow speedLow speed
ON
ONHigh speedHigh speed
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Downloaded from www.Manualslib.com manuals search engine 244CIRCUIT DIAGRAMS - Manual Air Conditioning Circuit
MANUAL AIR CONDITIONING CIRCUIT (1992 MODEL) (CONTINUED)
G-R
G-R
(A-67)
G-R
(G-R)G-R
AIR CONDITIONING
ENGINE COOLANT
&#FF'EATURE
ON-OFF:115’C(239’F)OFF-ON: 108’ C (226’ F)
L-R
(c-54)
r-
3----1IIIIII
I
I
!III
I I
IIIIIIi
115
G-O 2(G-0)
ON-OFF:210kPa (29.9~~ i)OFF-ON: 235kPa (33.4~5 i )ON-OFF
,\”DUAL;;FPJE;RE
(A-35):2100kPa(299Psi)
'1
W-G
,,s
THERMOSTAT'ON-OFF:155’C(311’F)OFF-ON: 110’ C (230’ F)OFF ‘*ON,(B-20) G-R“3
4t
EYWKB SEb
r-----I
i G-I;IIIIIII
I
I
I/I/
1 L
j G-k
L-----
B-\
pbw;;1c
RELAY
(A-33X)
B-W
.----___
G
-------
G
B-W
,-
ENGINE
E!6EL
COMPARISON
COMPRESSOR SPEED
OPERATION CIRCUIT
-
--3
1
(Y-G
IO.----
9
13
0 cci5) GEE)(B-03) [B-20) (c-02)(c-52)
HR12MOlBA
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Downloaded from www.Manualslib.com manuals search engine 260CIRCUIT DIAGRAMS - Manual Air Conditioning Circuit
MANUAL AIR CONDITIONING CIRCUIT (1994, 1995 MODELS)

2L-G
I
!$FAToRASSEMBLY(RESISTOR)
(A-55)
2L-'
1
IGNI1:SWITC
2L-E
J/B @
i30A
(c-69)
L-k
(A-04X)----------
B-
2EL-f
L-E
I
I
2L-GIL-R
5
I
RADIATOR
#A!OTOR(LO)(HI) OFF-:/'JN\/i4
G-E2B
G-fI1-------
L-F
F=
r
G-B
(F)YON
(IG2)
------I
ENGINE
COOLANT
1;E/E?QEWATURE
i
1$012 (c-31)
(F)i
3
:LE
iR-
(F)1.258I----
LMFI SYSTEM
I(Fj1.25116.-------_-_--_
(F>B-W
(LO)(HI)
ENGINE
CONTROL
MODULE
{A-04X) (A-07X) (A-55) SE2 (c-29)(c-31)(c-52)(c-54)
HR12M04AA
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